Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
1999-05-20
Phys.Rev. D60 (1999) 083511
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
10 pages in Revtex style, 3 figures
Scientific paper
10.1103/PhysRevD.60.083511
There are no reasons why the energy spectra of the relic gravitons, amplified by the pumping action of the background geometry, should not increase at high frequencies. A typical example of this behavior are quintessential inflationary models where the slopes of the energy spectra can be either blue or mildly violet. In comparing the predictions of scenarios leading to blue and violet graviton spectra we face the problem of correctly deriving the sensitivities of the interferometric detectors. Indeed, the expression of the signal-to-noise ratio not only depends upon the noise power spectra of the detectors but also upon the spectral form of the signal and, therefore, one can reasonably expect that models with different spectral behaviors will produce different signal-to-noise ratios. By assuming monotonic (blue) spectra of relic gravitons we will give general expressions for the signal-to-noise ratio in this class of models. As an example we studied the case of quintessential gravitons. The minimum achievable sensitivity to $h^2_{0} \Omega_{GW}$ of different pairs of detectors is computed, and compared with the theoretical expectations.
Babusci Danilo
Giovannini Massimo
No associations
LandOfFree
Sensitivity of wide band detectors to quintessential gravitons does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Sensitivity of wide band detectors to quintessential gravitons, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sensitivity of wide band detectors to quintessential gravitons will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-547166